Find the inverse of “f” algebraically, please!

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Here are the steps to find the inverse

Now this would be the answer if our original domain was

However, that's not the case and instead our domain is

Reflecting any (x,y) point in this domain restriction, over the the line y = x, will have us land on a point with a negative y value. This is because the inverse will swap the x and y values.

Therefore, the inverse function must ultimately be negative.

Currently is positive since the result of any square root is never negative.

To fix this, we stick a negative out front to get the final answer being

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7! = 7×6×5×4×3×2

3! = 3× 2

as 7! is multiple of 3! because 7! contains 3! that is 3× 2 as factor

so 7! /(3! ) = 7× 6× 5× 4

= 42 × 20

= 840

its b) 840✌✌✌

dhruv⭐